Nine countries currently either say they have nuclear weapons or are believed to possess them. The first to have nuclear arms were the five original nuclear weapons states — the United States, Russia, China, France and the United Kingdom.

Israel has targeted the secretive Fordow facility in recent days but, according to the IAEA, so far it has either been unwilling – or unable – to damage it. Here’s what we know.

China has an estimated 600 nuclear warheads—an increase of 100 in just one year—the Stockholm International Peace Research Institute reported.

The International Atomic Energy Agency said Tuesday it believes Israeli airstrikes on Iran’s Natanz enrichment site have had “direct impacts” on the facility’s underground centrifuge halls. The strikes are part of an air campaign Israel launched against its longtime foe five days ago,

Researchers are fine-tuning recipes for a new kind of nuclear battery at Zeno Power's office-lab complex in Seattle.

Up to 160 new homes could be built near a nuclear power station. Strongvox Homes initially proposed the homes in the village of Cannington, Somerset, a few miles from Hinkley Point C, in 2014. Revised plans for the same number of properties have now come forward,

Artificial intelligence could spark an accidental nuclear war, conflict experts fear. The Stockholm International Peace Research Institute (SIPRI), the world's leading organisation on nuclear assessments, said technologies like AI are aggravating the ...

This breakthrough is already making waves. University researchers develop revolutionary closet-sized nuclear reactor: 'Something no other university has' first appeared on The Cool Down.